I'm ingesting log output from a Spring Boot application with Open Telemetry configured and using the open telemetry collector to import logs into loki (also into victoriametrics-logs for comparing).

This is my open telemetry collector configuration.

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317
      http:
        endpoint: 0.0.0.0:4318
  zipkin: # just for troubleshooting

#
processors:
  attributes:
    actions:
      - key: team
        action: insert
        value: martinahrer

exporters:
  debug:
    verbosity: detailed

  #otlphttp exporter
  #.md

  otlphttp/victoria-logs:
    compression: gzip
    endpoint: http://victoria-logs:9428/insert/opentelemetry
    tls:
      insecure: true

  otlphttp/victoria-metrics:
    compression: gzip
    endpoint: http://victoria-metrics:8428/opentelemetry/
    tls:
      insecure: true

  #otlp exporter
  #
  otlphttp/tempo:
    # tempo:4317 #gRPC
    endpoint: http://tempo:4318
    tls:
      insecure: true

  # Added just to compare with victoria-metrics
  prometheusremotewrite:
    endpoint: http://prometheus:9090/api/v1/write

  # Added just to compare with victorialogs
  otlphttp/loki:
    endpoint: http://loki:3100/otlp


service:
  telemetry:
    logs:
      level: DEBUG

  extensions:
    - zpages
  pipelines:
    logs:
      receivers: [otlp]
      processors: []
      exporters: [debug, otlphttp/victoria-logs, otlphttp/loki]
    metrics:
      receivers: [otlp]
      processors: [attributes]
      exporters: [debug, otlphttp/victoria-metrics, prometheusremotewrite]
    traces:
      receivers: [otlp, zipkin]
      exporters: [debug, otlphttp/tempo]

extensions:
  zpages:
    endpoint: "0.0.0.0:55679"

loki is running with default configuration!

With the loki datasource certain fields like the spanId and the traceID appear twice (as span_id and trace_id) when quering for logs in grafana. These do not appear when querying my victoriametrics-logs datasource.

All of those fields appear as structured metadata!

S trace_id d4631c7e0ac527b81064282c3523a39f
S traceId d4631c7e0ac527b81064282c3523a39f

Is this some loki thing? Looking at the opentelemtery collector log output I can only find the attributes spanId and traceId.

How can I prevent these to appear twice or at least how can I remove those from the attributes displayed with loki.

I have been experimenting with limits_config as shown in but had no success with that.